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Finding the Fourth Proportional to 247,618.88, 371,288.88 and 79,099.60

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Solution

The fourth proportional to 247,618.88, 371,288.88 and 79,099.60 is: 118,604.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,618.88 : 371,288.88 = 79,099.60 : x
  2. Step 2: Convert to fraction form
    247,618.88/371,288.88 = 79,099.60/x
  3. Step 3: Cross multiply
    247,618.88x = 371,288.88 × 79,099.60
  4. Step 4: Simplify right side
    247,618.88x = 29,368,801,892.45
  5. Step 5: Solve for x
    x = 29,368,801,892.45/247,618.88
  6. Step 6: Final answer
    x = 118,604.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.